| 1 | /* Report a save- or restore-cwd failure in our openat replacement and then exit. |
| 2 | |
| 3 | Copyright (C) 2005-2006, 2008-2020 Free Software Foundation, Inc. |
| 4 | |
| 5 | This program is free software: you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <config.h> |
| 19 | |
| 20 | #include "openat.h" |
| 21 | |
| 22 | #include <stdlib.h> |
| 23 | |
| 24 | #ifndef GNULIB_LIBPOSIX |
| 25 | # include "error.h" |
| 26 | #endif |
| 27 | |
| 28 | #include "exitfail.h" |
| 29 | |
| 30 | #include "gettext.h" |
| 31 | #define _(msgid) gettext (msgid) |
| 32 | |
| 33 | _Noreturn void |
| 34 | openat_save_fail (int errnum) |
| 35 | { |
| 36 | #ifndef GNULIB_LIBPOSIX |
| 37 | error (exit_failure, errnum, |
| 38 | _("unable to record current working directory")); |
| 39 | #endif |
| 40 | /* _Noreturn cannot be applied to error, since it returns |
| 41 | when its first argument is 0. To help compilers understand that this |
| 42 | function does not return, call abort. Also, the abort is a |
| 43 | safety feature if exit_failure is 0 (which shouldn't happen). */ |
| 44 | abort (); |
| 45 | } |
| 46 | |
| 47 | |
| 48 | /* Exit with an error about failure to restore the working directory |
| 49 | during an openat emulation. The caller must ensure that fd 2 is |
| 50 | not a just-opened fd, even when openat_safer is not in use. */ |
| 51 | |
| 52 | _Noreturn void |
| 53 | openat_restore_fail (int errnum) |
| 54 | { |
| 55 | #ifndef GNULIB_LIBPOSIX |
| 56 | error (exit_failure, errnum, |
| 57 | _("failed to return to initial working directory")); |
| 58 | #endif |
| 59 | |
| 60 | /* As above. */ |
| 61 | abort (); |
| 62 | } |